Water ice on the satellite of Kuiper Belt object 2003 EL61

被引：48
作者：
Barkume, KM [1 ]
Brown, ME [1 ]
Schaller, EL [1 ]
机构：
[1] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA
来源：
ASTROPHYSICAL JOURNAL | 2006年 / 640卷 / 01期
关键词：
comets : general; infrared : solar system; minor planets; asteroids;
D O I：
10.1086/503159
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have obtained a near-infrared spectrum of the brightest satellite of the large Kuiper Belt object 2003 EL61. The spectrum has absorption features at 1.5 and 2.0 mu m, indicating that water ice is present on the surface. We find that the satellite's absorption lines are much deeper than water ice features typically found on Kuiper Belt objects. We argue that the unusual spectrum indicates that the satellite was likely formed by impact and not by capture.
引用
收藏
页码：L87 / L89
页数：3
相关论文
共 19 条
  • [1] Near-infrared spectroscopy of centaurs and irregular satellites
    Brown, ME
    [J]. ASTRONOMICAL JOURNAL, 2000, 119 (02) : 977 - 983
  • [2] Evidence for crystalline water and ammonia ices on Pluto's satellite Charon
    Brown, ME
    Calvin, WM
    [J]. SCIENCE, 2000, 287 (5450) : 107 - 109
  • [3] Satellites of the largest Kuiper Belt objects
    Brown, ME
    van Dam, MA
    Bouchez, AH
    Le Mignant, D
    Campbell, RD
    Chin, JCY
    Conrad, A
    Hartman, SK
    Johansson, EM
    Lafon, RE
    Rabinowitz, DL
    Stomski, PJ
    Summers, DM
    Trujillo, CA
    Wizinowich, PL
    [J]. ASTROPHYSICAL JOURNAL, 2006, 639 (01) : L43 - L46
  • [4] Keck Observatory laser guide star adaptive optics discovery and characterization of a satellite to the large kuiper belt object 2003 EL61
    Brown, ME
    Bouchez, AH
    Rabinowitz, D
    Sari, R
    Trujillo, CA
    van Dam, M
    Campbell, R
    Chin, J
    Hartman, S
    Johansson, E
    Lafon, R
    Le Mignant, D
    Stomski, P
    Summers, D
    Wizinowich, P
    [J]. ASTROPHYSICAL JOURNAL, 2005, 632 (01) : L45 - L48
  • [5] Near-infrared spectroscopy of the bright Kuiper Belt object 2000 EB173
    Brown, ME
    Blake, GA
    Kessler, JE
    [J]. ASTROPHYSICAL JOURNAL, 2000, 543 (02) : L163 - L165
  • [6] A giant impact origin of Pluto-Charon
    Canup, RM
    [J]. SCIENCE, 2005, 307 (5709) : 546 - 550
  • [7] A spectroscopic study of the surfaces of Saturn's large satellites:: H2O ice, tholins, and minor constituents
    Cruikshank, DP
    Owen, TC
    Ore, CD
    Geballe, TR
    Roush, TL
    de Bergh, C
    Sandford, SA
    Poulet, F
    Benedix, GK
    Emery, JP
    [J]. ICARUS, 2005, 175 (01) : 268 - 283
  • [8] CRUIKSHANK DP, 1976, SCIENCE, V194, P835
  • [9] Searching for water ice on 47171 1999 TC36, 1998 SG35, and 2000 QC243: ESO Large program on TNOs and Centaurs
    Dotto, E
    Barucci, MA
    Boehnhardt, H
    Romon, J
    Doressoundiram, A
    Peixinho, N
    de Bergh, C
    Lazzarin, M
    [J]. ICARUS, 2003, 162 (02) : 408 - 414
  • [10] Water ice on the surface of the large TNO 2004 DW
    Fornasier, S
    Dotto, E
    Barucci, MA
    Barbieri, C
    [J]. ASTRONOMY & ASTROPHYSICS, 2004, 422 (02) : L43 - L46
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